[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Date: Tue, 14 Feb 2023 07:05:15 -0500
From: Rich Felker <dalias@...c.org>
To: 兔子猪 <3264430019@...com>
Cc: musl <musl@...ts.openwall.com>
Subject: Re: [PATCH]fix tsd's issue
On Tue, Feb 14, 2023 at 03:25:23PM +0800, 兔子猪 wrote:
> Currently, I am trying to port jemalloc to musl, I have found a issue "the return value of pthread_getspecific is not correct". The reasons are as follows:
> 1, Jemalloc uses pthread_key_t to implement cache feature, if codes call malloc, pthread_create_key will called and tsd will be initizlized.
> 2, Musl calls malloc before updating TLS size in dl stage 3.
> 3, New created initial_tls doesn't carry builtin_tls's tsd.
>
>
> The attached patch could fix this issue, please review it, thanks.
An interposed malloc being reachable before the crt1 entry point is a
bug that needs to be fixed. This is a context where it's not valid to
call any application-provided code. Where does the call happen from?
dynlink.c itself uses the internal malloc but I guess there's
somewhere the interposable malloc is getting called indirectly from.
Rich
Powered by blists - more mailing lists
Confused about mailing lists and their use?
Read about mailing lists on Wikipedia
and check out these
guidelines on proper formatting of your messages.
